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   亥姆霍茲線(xiàn)圈磁場(chǎng)
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HM-200型三維赫姆霍茲線(xiàn)圈
 
產(chǎn)品名稱(chēng):HM-200型三維赫姆霍茲線(xiàn)圈

產(chǎn)品編號:5-36
產(chǎn)品型號:HM-200型
更新時(shí)間:2019.03.08
瀏覽次數:
   產(chǎn)品詳細介紹
HM-200型三維赫姆霍茲線(xiàn)圈
1、概述
  赫姆霍茲線(xiàn)圈(Helmholtz Coil)是由一對長(cháng)度較短而半徑較長(cháng)(或者是方形線(xiàn)圈的邊長(cháng))且布置在同一軸上并相隔與其半徑相等的距離的線(xiàn)圈所組成,其中單個(gè)線(xiàn)圈所產(chǎn)生的場(chǎng)是不均勻的。然而通過(guò)將兩個(gè)線(xiàn)圈所產(chǎn)生的場(chǎng)疊加,在兩個(gè)線(xiàn)圈之間幾何軸附近的區域能夠得到一個(gè)較寬的均勻場(chǎng),赫姆霍茨線(xiàn)圈通常做成圓柱的和方形的幾何形狀。
一維赫姆霍茲線(xiàn)圈是由一個(gè)赫姆霍茲線(xiàn)圈組成;二維赫姆霍茲線(xiàn)圈是由兩個(gè)互相垂直的赫姆霍茲線(xiàn)圈組成;三維赫姆霍茲線(xiàn)圈(Helmholtz Coil)是由三個(gè)亥姆線(xiàn)圈、互相垂直放置的三個(gè)赫姆霍茲線(xiàn)圈組成,三個(gè)赫姆霍茲線(xiàn)圈的軸向成X、Y、Z軸,產(chǎn)生的磁場(chǎng)方向就是X、Y、Z軸方向。
2、用途
   利用線(xiàn)圈的三維空間布置,可以通過(guò)調節線(xiàn)圈對之間的電流比率產(chǎn)生任意方向的磁場(chǎng),赫爾姆霍茲線(xiàn)圈的磁場(chǎng)強度是與電流成線(xiàn)性關(guān)系與空間位置無(wú)關(guān)(在均勻場(chǎng)區內部)。通過(guò)線(xiàn)圈幾何尺寸、線(xiàn)圈電流和匝數,可計算出沿軸的解析磁場(chǎng)強度。因此赫爾姆霍茲線(xiàn)圈是用于儀器校準的理想磁場(chǎng)發(fā)生器,可以完美抵消地磁場(chǎng)效應,例如霍爾,磁阻,磁門(mén)和超導量子干涉器等。亥姆霍茲線(xiàn)圈不但用于磁場(chǎng)的產(chǎn)生也用于永磁材料的品質(zhì)測量,比如:磁通量和磁矩的測量。
3、主要技術(shù)指標
中心磁場(chǎng):0-200Gs
線(xiàn)圈內孔:可指定
均線(xiàn)區域:可指定
均 勻 度:10%-0.1%
一維/二維/三維:可選擇
 
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